
  Data of a leukemia remission study. There are 42 patients in the dataset, who were monitored for whether they relapsed and for how long (in weeks) they remained in remission.


datasets

Fit a threshold regression model based on the first-hitting-time of a boundary by the sample path of a Wiener diffusion process. The threshold regression methodology is well suited to applications involving survival and time-to-event data.

Tao Xiao

threg

Threshold Regression

lkr function

<table><tr><td>
    weeks:</td>
</tr><tr><td> the time that a patient was remained in remission (in weeks)</td>
</tr><tr><td>
    relapse:</td>
</tr><tr><td> whether the patient was relapsed -  1 = yes, 0 = no</td>
</tr><tr><td>
    treatment1:</td>
</tr><tr><td> 1=drug A, 0 = standard drug for treatment1</td>
</tr><tr><td>
    treatment2:</td>
</tr><tr><td> 1=drug B, 0 = standard drug for treatment2</td>
</tr><tr><td>
    wbc3cat:</td>
</tr><tr><td>  white blood cell count, recorded in three categories - 1 = normal, 2= moderate, 3 = high</td>
</tr></table>

lkr: Leukemia Remission Data

Description

Usage

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References